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Round|Natural|GIA

1.40ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7506436526

Certificate GIA 7506436526

Diamond specifications and retailer prices

From $5,319 SGD
$4,161 USD
As of October 30, 2026
Save $9,570 SGD (64%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $14,890 SGD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7506436526. Listed at 29 retailers as of October 29, 2026, with prices from $5,319 to $14,890, a $9,570 spread on the same certified stone. Diamond Quarter lists it at $14,890. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.40
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7506436526
Dimensions7.15 × 7.12 × 4.48 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural
Top View
7.15 mm7.12 mm1.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7506436526
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,279 SGD|Low: $4,834 SGD|High: $11,597 SGD|Avg: $7,048 SGD|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 16$5,319 SGD
Retailer 19$5,331 SGD
Retailer 3$5,372 SGD
Retailer 6$5,524 SGD
Retailer 18$5,525 SGD
Retailer 17$5,593 SGD
Retailer 5$5,847 SGD
Retailer 1$6,279 SGD
Retailer 14$6,444 SGD
Retailer 7$6,618 SGD
Retailer 11$6,741 SGD
Retailer 12$6,779 SGD
Retailer 8$7,095 SGD
Retailer 10$7,095 SGD
Retailer 2$7,338 SGD
Retailer 4$7,663 SGD
Retailer 13$7,706 SGD
Retailer 9$10,127 SGD
Retailer 15$11,199 SGD

30 data points across 19 retailers

29 retailers$5,319 SGD to $14,890 SGD

A
Cheapest Retailer
-
$5,319 SGD
$4,161 USD
A
Retailer 2
-
$5,331 SGD
$4,170 USD
View
A
Retailer 3
-
$5,372 SGD
$4,202 USD
View
A
Retailer 4
-
$5,524 SGD
$4,321 USD
View
A
Retailer 5
-
$5,525 SGD
$4,322 USD
View
A
Retailer 6
-
$5,593 SGD
$4,375 USD
View
A
Retailer 7
-
$5,847 SGD
$4,574 USD
View
Final sale: no returns
A
Retailer 8
-
$6,279 SGD
$4,911 USD
View
A
Retailer 9
-
$6,444 SGD
$5,041 USD
View
A
Retailer 10
-
$6,618 SGD
$5,177 USD
View
Retailer 11
-
$6,652 SGD
$5,203 USD
View
Price last confirmed 19 days ago
Retailer 12
-
$6,652 SGD
$5,203 USD
View
Price last confirmed 23 days ago
Retailer 13
-
$6,652 SGD
$5,203 USD
View
Price last confirmed 31 days ago
Retailer 14
-
$6,699 SGD
$5,240 USD
View
Price last confirmed 52 days ago
Retailer 15
-
$6,741 SGD
$5,273 USD
View
Price last confirmed 8 days ago
A
Retailer 16
-
$6,779 SGD
£4,175 GBP
View
A
Retailer 17
-
$7,095 SGD
$5,550 USD
View
A
Retailer 18
-
$7,095 SGD
$5,550 USD
View
A
Retailer 19
-
$7,338 SGD
$5,740 USD
View
Retailer 20
-
$7,466 SGD
$5,840 USD
View
Price last confirmed 54 days ago
B+
Retailer 21
-
$7,663 SGD
£4,720 GBP
View
Retailer 22
-
$7,676 SGD
$6,004 USD
View
Price last confirmed 21 days ago
B+
Retailer 23
-
$7,706 SGD
€5,741 EUR
View
B+
Retailer 24
-
$10,127 SGD
$7,922 USD
View
B
Retailer 25
-
$11,199 SGD
£6,898 GBP
View
Retailer 26
-
$11,945 SGD
$9,344 USD
View
Price last confirmed 59 days ago
Retailer 27
-
$12,280 SGD
$9,606 USD
View
Price last confirmed 27 days ago
B
Retailer 28
-
$14,028 SGD
£8,640 GBP
View
Most Expensive
B
Diamond Quarter
1.4SI2D7526DC67N · Oct 29
$14,890 SGD
£9,171 GBP
View
28 more retailers have this diamond
Prices start from $5,319 SGDSave up to $9,570 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.40ct Round
$5,319 SGD